Marketplace Morning Report for Thursday April 17, 2014

The ACA exchanges have been good for business. Both United Healthcare and Blue Cross plan to expand their offerings in 2015, while other top carriers are considering their options. We look at what the giant insurers have in store for ACA, year two. Plus, China's version of Twitter goes public on Nasdaq this Thursday. But there are big concerns over censorship. Nine percent of China's microblogging traffic disappeared last year due to "big brother" concerns.